Drawing on the writings of Michel Foucault, this paper argues that the establishment of a new nomenclature and treatment model for intersexed individuals expands both the number of disciplines and the number of physical elements recognized as involved in (im) proper sex development and further, that the temporalization of these elements works to establish sex development as a discipline. Sex development thus emerges as a field of power/knowledge that allows for the distribution of not just individuals with intersex conditions, but of all individuals, in relation to a norm. Further, while many see this model of treatment as finally acknowledging the calls of intersex activists for patient involvement in decision making, for the delaying of unnecessary surgical and hormonal treatment, and for urging honesty among physicians, patients and parents, this article argues that for some these may be hollow victories, requiring that both the patient and his or her family be disciplined into the right attitudes, behaviours and responses to treatment—and that they themselves discipline others accordingly—in order to enjoy these gains.